//
//    FILE: MCP3008_analogRead_ESP32_SWSPI.ino
//  AUTHOR: Rob Tillaart
// PURPOSE: demo
//     URL: https://github.com/RobTillaart/MCP_ADC


#include "MCP_ADC.h"


//  ESP32 PINS
//  For HSPI
//    CLK:  14
//    MOSI: 13
//    MISO: 12
//
//  For VSPI (id = 2):
//    CLK:  18,
//    MOSI: 23,
//    MISO: 19,


MCP3008 mcp1(23, 19, 21);      //  ESP32 use SWSPI  dataIn, dataOut, Clock
// MCP3008 mcp1;               //  use HWSPI  on ESP32 (apparently VSPI)
// MCP3008 mcp1(6, 7, 8);      //  UNO   use SWSPI  dataIn, dataOut, Clock


void setup()
{
  Serial.begin(115200);
  Serial.println(__FILE__);
  Serial.print("MCP_ADC_LIB_VERSION: ");
  Serial.println(MCP_ADC_LIB_VERSION);

  SPI.begin();

  mcp1.begin(5);

  Serial.println();
  Serial.println("ADC\tCHAN\tMAXVALUE");
  Serial.print("mcp1\t");
  Serial.print(mcp1.channels());
  Serial.print("\t");
  Serial.println(mcp1.maxValue());
}


void loop()
{
  Serial.print(millis());
  Serial.print("\tmcp1:\t");
  for (int channel = 0 ; channel < mcp1.channels(); channel++)
  {
    uint16_t val = mcp1.read(channel);
    Serial.print(val);
    Serial.print("\t");
    delay(1);       //  added so single reads are better visible on a scope
  }
  Serial.println();

  delay(1000);
}


//  -- END OF FILE --

